| Abstract |
In this paper, the authors propose a calculation method for the compensating current
reference of the active power filter, where a nonlinear load exists in the three-phase three-wire
unsymmetrical voltage system. This new method has been named extension pq method. The authors have
experimented with the extension pq method and the pq method, using the same current controlled IPM
inverter for both methods. The results of the experiments proved that in the unsymmetrical voltage
system, the source current was distorted in case of the pq method, but undistorted in case of the
extension pq method. |
